Improvement of Optical Properties of Selenium Nanoparticles and Applications as Anti-Bacterial
نویسندگان
1 Department of Physics, College of Education for Pure Sciences, Tikrit University, Tikrit, Iraq
2 Department of Physics, College of Education for Pure Sciences, Tikrit University, Tikrit, Iraq
doi
10.22052/JNS.2025.03.003چکیده
When preparing nanoparticles, pulsed laser ablation in liquid (PLAL) is a technology that has numerous advantages over conventional approaches. Using a Nd:YAG laser with three pulse durations (30, 40, and 50) pulse at a wavelength of 1064 nanometers and an output energy of 240 millijoules, nanoparticles were created from a sample of pure selenium metal using the pulsed laser ablation method in ethanol. Through optical analysis, this study investigates the impact of changing the number of laser pulses on the properties of the resultant nanoparticles and their potential uses in biology There was an improvement in the optical characteristics Whereas transmittance and energy gap dropped as the number of laser pulses grew, absorbance and reflectance both rose simultaneously. Both Gram-positive and Gram-negative bacteria were significantly inhibited by the selenium nanostructures.
